67665676677 has 8 divisors (see below), whose sum is σ = 90226362240. Its totient is φ = 45107721120.

The previous prime is 67665676669. The next prime is 67665676679. The reversal of 67665676677 is 77667656676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67665676677 - 2³ = 67665676669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67665676679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623949 + ... + 724322.

It is an arithmetic number, because the mean of its divisors is an integer number (11278295280).

Almost surely, 2^67665676677 is an apocalyptic number.

It is an amenable number.

67665676677 is a deficient number, since it is larger than the sum of its proper divisors (22560685563).

67665676677 is a wasteful number, since it uses less digits than its factorization.

67665676677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365003.

The product of its digits is 560105280, while the sum is 69.

The spelling of 67665676677 in words is "sixty-seven billion, six hundred sixty-five million, six hundred seventy-six thousand, six hundred seventy-seven".